April weather forecastSaint John, Canada
April
Weather in April
With the arrival of April, Saint John, Canada begins to experience discernible signs of spring. It marks a period where residents start enjoying more outdoor activities, taking advantage of the increasingly warmer days. Wind speeds tend to decrease, further enhancing the appeal of spending time outdoors. Rain also becomes more frequent, replenishing the city's flora after the long winter. Saliently, April sees a rise in temperature with values varying from 1.1°C (34°F) to 7.3°C (45.1°F).Temperature
Saint John's weather in April presents a rise in the average high-temperature, moving from a cold 1.6°C (34.9°F) in March to a frosty 7.3°C (45.1°F). An average low-temperature of 1.1°C (34°F) is anticipated throughout the nights in Saint John during April.Humidity
In April, the average relative humidity is 81%.Rainfall
In Saint John, during April, the rain falls for 13.3 days and regularly aggregates up to 34mm (1.34") of precipitation. Throughout the year, in Saint John, there are 122.4 rainfall days, and 390mm (15.35") of precipitation is accumulated.Snowfall
Months with snowfall in Saint John, Canada, are January through May, November and December. In Saint John, in April, snow falls for 3.4 days, with typically accumulated 21mm (0.83") of snow. Throughout the year, there are 37.1 snowfall days, and 188mm (7.4") of snow is accumulated.Sea temperature
In April, the average sea temperature is 4.3°C (39.7°F).Note: In water-based activities like swimming, this poses significant life risks. The cold water results in agonizing discomfort and quick hyperventilation. A specialized swimsuit is crucial to reduce the potential thermal damage.
Daylight
In April, the average length of the day is 13h and 32min.On the first day of April in Saint John, sunrise is at 7:03 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:29 pm ADT.
Sunshine
In Saint John, the average sunshine in April is 6.6h.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 during April leads to these advisories:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Saint John, Canada
- Average high temperature in April: 7.3°C
The warmest month (with the highest average high temperature) is August (21.5°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in April: 1.1°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (-8.6°C).
Average pressure in April
Saint John, Canada
- Average pressure in April: 1014mbar
The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is June (1012.8mbar).
Average wind speed in April
Saint John, Canada
- Average wind speed in April: 16.8km/h
The windiest month (with the highest average wind speed) is January (19.9km/h).
The calmest month (with the lowest average wind speed) is August (12.3km/h).
Average humidity in April
Saint John, Canada
- Average humidity in April: 81%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are October and November (80%).
Average rainfall in April
Saint John, Canada
- Average rainfall in April: 34mm
The wettest month (with the highest rainfall) is December (43mm).
The driest month (with the least rainfall) is August (22mm).
Average rainfall days in April
Saint John, Canada
- Average rainfall days in April: 13.3 days
The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in April
Saint John, Canada
- Average snowfall in April: 21mm
The month with the highest snowfall is January (40mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in April
Saint John, Canada
- Average snowfall days in April: 3.4 days
The month with the highest number of snowfall days is March (9.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in April
Saint John, Canada
- Average sea temperature in April: 4.3°C
The best month for swimming (with the highest average sea temperature) is August (13.3°C).
The coldest month (with the lowest average sea temperature) is March (2.9°C).
Average daylight in April /
Average sunshine in April
Saint John, Canada
- Average daylight in April: 13h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in April: 6h and 36min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in April
Saint John, Canada
- Average sunshine days in April: 11.8 days
The month with the most sunshine days is January (18.9 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in April
Saint John, Canada
- Average UV index in April: 2
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in April
Saint John, Canada
- Average cloud cover in April: 57
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in April
Saint John, Canada
- Average visibility in April: 9km
The month with the highest visibility is October (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, November and December (9km).
